graphics - Can't GUI login after nvidia update - Ask Ubuntu


my ubuntu 16.04 system running ok until allowed today's update. after system reboot, not able log in using gui. after entering in password, system pause, after bit screen go black, , return login screen. 1 of updates nvidia driver update nvidia-current:amd64 (304.131-0ubuntu3, 304.132-0ubuntu0.16.04.2) /var/log/apt/history.log

when remove nvidia using 

$ sudo apt purge nvidia-* following packages removed:   nvidia-304* nvidia-common* nvidia-current* nvidia-opencl-icd-304*   nvidia-settings*

the system works, although think using base graphics. when reinstall using 

$ sudo apt-get install nvidia-current nvidia-settings following additional packages installed:   nvidia-304 nvidia-opencl-icd-304 following new packages installed:   nvidia-304 nvidia-current nvidia-opencl-icd-304 nvidia-settings

the system no longer logs in , bad before.

some system info:

$ lspci | grep vga 05:00.0 vga compatible controller: nvidia corporation g98 [quadro nvs 420] (rev a1)  $ ls -latr .xauthority -rw------- 1 gallagherlab gallagherlab 86 nov  4 14:25 .xauthority

below did not change anything, bad permissions persist after reboot

rm .xauthority  sudo chown -r $user:$user $home  chmod +x -r $home

i tried install 304.131-0ubuntu3 using .run file ran x issues.

any fixed appreciated.

reported/confirmed bug #1639180. had same problem , ended manually installing nvidia-304.131 note have first install mtrr patch nvidia .run file (fairly easy ... instructions , patch file can found on-line).


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